From patchwork Thu Nov 30 20:14:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pasha Tatashin X-Patchwork-Id: 749354 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=soleen.com header.i=@soleen.com header.b="QfgvyeFp" Received: from mail-oo1-xc30.google.com (mail-oo1-xc30.google.com [IPv6:2607:f8b0:4864:20::c30]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 77DF21724 for ; Thu, 30 Nov 2023 12:15:12 -0800 (PST) Received: by mail-oo1-xc30.google.com with SMTP id 006d021491bc7-58ceab7daddso698030eaf.3 for ; Thu, 30 Nov 2023 12:15:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; t=1701375311; x=1701980111; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:from:to:cc:subject:date:message-id :reply-to; bh=yfTdzFG6SHCh2UHnxot++MviNj2L80bFYdKeG3yhIm0=; b=QfgvyeFp1CeiZ4e57mb8EOPAemBVt07ijtdGx6DQjzOhGgJaJKu4iGmhRW07CrttVJ sTOqTjr9pZRSDsJh7C8qB3MQ+VLQS3pJwDvT8vzd2AAt6DnPLfxpTw2ilx2xFTuwBTKn UONhLq9NWEksAr5eaCXmSrwPdMSsU1RZ7bCjcHiOzNi25jzsA3fNwGFgjf01ffpfYw4V o5IBinJC1y2D5EZ3J5duApCuqaTIovT4bhy25qLFT+HC4XNjbbK6m4eq4QPm0fcMdCOS aKtXxrD9+wZdwIlQUW6w1oQbKjHJfc1nFzLTmKDWTc7/6nr2IjWMg+AmsZT1m93S4jsu XxBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701375312; x=1701980112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=yfTdzFG6SHCh2UHnxot++MviNj2L80bFYdKeG3yhIm0=; b=MCs6k21BMew9ZofZSoEW2JMtD2TvKyi7XUzPhsdahap8m5bc2OArXCKW3CnZvGs8sq IhpVjJ1bM7iIAiXUWFJB/Viy6VfLgiXOb7/9QsiZU53Jumzxz/dEGLlUbukGs0fg7TSm EbbXr6/r2XrCS/9Emy4Zed8JvBrQbC4vRxhoUPvCibC7UpjpZ99g0AJ2V/6mwqU9XSGY cvUnwr7GLs2PY42smZtIEqXmg90RvzWUh0MTYKrMgRjqztEZYBqpp1AtpTS8h8S5XiBe iA9E/QSraZkp/f4j13pp/R2QuUl+k0e7T1e7LY4Ki3Ubvb8C2jx/VrRTIMTq0ESruDFt G37g== X-Gm-Message-State: AOJu0Yx2Pfefj3J4G5d4AoqPK9teK1abckaWuAIPXiZDfL758U+cYiQq v3aWll7XxIHCEwKeBtMFmu3gmA== X-Google-Smtp-Source: AGHT+IFMEwE+ifBtQCWWH8W7nWxbE36GDcNl4TH5XHATcaDXANsvzTlHeJN6S0z8EPAHXXipNQHPnA== X-Received: by 2002:a05:6870:41cd:b0:1fa:c97:220a with SMTP id z13-20020a05687041cd00b001fa0c97220amr24204427oac.10.1701375311601; Thu, 30 Nov 2023 12:15:11 -0800 (PST) Received: from soleen.c.googlers.com.com (55.87.194.35.bc.googleusercontent.com. [35.194.87.55]) by smtp.gmail.com with ESMTPSA id e1-20020a0cb441000000b0067a35608186sm795252qvf.28.2023.11.30.12.15.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Nov 2023 12:15:11 -0800 (PST) From: Pasha Tatashin To: akpm@linux-foundation.org, alim.akhtar@samsung.com, alyssa@rosenzweig.io, asahi@lists.linux.dev, baolu.lu@linux.intel.com, bhelgaas@google.com, cgroups@vger.kernel.org, corbet@lwn.net, david@redhat.com, dwmw2@infradead.org, hannes@cmpxchg.org, heiko@sntech.de, iommu@lists.linux.dev, jernej.skrabec@gmail.com, jonathanh@nvidia.com, joro@8bytes.org, krzysztof.kozlowski@linaro.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, lizefan.x@bytedance.com, marcan@marcan.st, mhiramat@kernel.org, m.szyprowski@samsung.com, pasha.tatashin@soleen.com, paulmck@kernel.org, rdunlap@infradead.org, robin.murphy@arm.com, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tj@kernel.org, tomas.mudrunka@gmail.com, vdumpa@nvidia.com, wens@csie.org, will@kernel.org, yu-cheng.yu@intel.com Subject: [PATCH v2 04/10] iommu/io-pgtable-dart: use page allocation function provided by iommu-pages.h Date: Thu, 30 Nov 2023 20:14:58 +0000 Message-ID: <20231130201504.2322355-5-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.43.0.rc2.451.g8631bc7472-goog In-Reply-To: <20231130201504.2322355-1-pasha.tatashin@soleen.com> References: <20231130201504.2322355-1-pasha.tatashin@soleen.com> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Convert iommu/io-pgtable-dart.c to use the new page allocation functions provided in iommu-pages.h. Signed-off-by: Pasha Tatashin Reviewed-by: Janne Grunau Acked-by: David Rientjes --- drivers/iommu/io-pgtable-dart.c | 37 +++++++++++++-------------------- 1 file changed, 14 insertions(+), 23 deletions(-) diff --git a/drivers/iommu/io-pgtable-dart.c b/drivers/iommu/io-pgtable-dart.c index 74b1ef2b96be..ad28031e1e93 100644 --- a/drivers/iommu/io-pgtable-dart.c +++ b/drivers/iommu/io-pgtable-dart.c @@ -23,6 +23,7 @@ #include #include +#include "iommu-pages.h" #define DART1_MAX_ADDR_BITS 36 @@ -106,18 +107,12 @@ static phys_addr_t iopte_to_paddr(dart_iopte pte, return paddr; } -static void *__dart_alloc_pages(size_t size, gfp_t gfp, - struct io_pgtable_cfg *cfg) +static void *__dart_alloc_pages(size_t size, gfp_t gfp) { int order = get_order(size); - struct page *p; VM_BUG_ON((gfp & __GFP_HIGHMEM)); - p = alloc_pages(gfp | __GFP_ZERO, order); - if (!p) - return NULL; - - return page_address(p); + return iommu_alloc_pages(gfp, order); } static int dart_init_pte(struct dart_io_pgtable *data, @@ -262,13 +257,13 @@ static int dart_map_pages(struct io_pgtable_ops *ops, unsigned long iova, /* no L2 table present */ if (!pte) { - cptep = __dart_alloc_pages(tblsz, gfp, cfg); + cptep = __dart_alloc_pages(tblsz, gfp); if (!cptep) return -ENOMEM; pte = dart_install_table(cptep, ptep, 0, data); if (pte) - free_pages((unsigned long)cptep, get_order(tblsz)); + iommu_free_pages(cptep, get_order(tblsz)); /* L2 table is present (now) */ pte = READ_ONCE(*ptep); @@ -419,8 +414,7 @@ apple_dart_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie) cfg->apple_dart_cfg.n_ttbrs = 1 << data->tbl_bits; for (i = 0; i < cfg->apple_dart_cfg.n_ttbrs; ++i) { - data->pgd[i] = __dart_alloc_pages(DART_GRANULE(data), GFP_KERNEL, - cfg); + data->pgd[i] = __dart_alloc_pages(DART_GRANULE(data), GFP_KERNEL); if (!data->pgd[i]) goto out_free_data; cfg->apple_dart_cfg.ttbr[i] = virt_to_phys(data->pgd[i]); @@ -429,9 +423,10 @@ apple_dart_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie) return &data->iop; out_free_data: - while (--i >= 0) - free_pages((unsigned long)data->pgd[i], - get_order(DART_GRANULE(data))); + while (--i >= 0) { + iommu_free_pages(data->pgd[i], + get_order(DART_GRANULE(data))); + } kfree(data); return NULL; } @@ -439,6 +434,7 @@ apple_dart_alloc_pgtable(struct io_pgtable_cfg *cfg, void *cookie) static void apple_dart_free_pgtable(struct io_pgtable *iop) { struct dart_io_pgtable *data = io_pgtable_to_data(iop); + int order = get_order(DART_GRANULE(data)); dart_iopte *ptep, *end; int i; @@ -449,15 +445,10 @@ static void apple_dart_free_pgtable(struct io_pgtable *iop) while (ptep != end) { dart_iopte pte = *ptep++; - if (pte) { - unsigned long page = - (unsigned long)iopte_deref(pte, data); - - free_pages(page, get_order(DART_GRANULE(data))); - } + if (pte) + iommu_free_pages(iopte_deref(pte, data), order); } - free_pages((unsigned long)data->pgd[i], - get_order(DART_GRANULE(data))); + iommu_free_pages(data->pgd[i], order); } kfree(data);